Card-stopping device



Sept. 3, 192.9. P, GULLUNG 1,727,285

CARD STOPPING lDEVICE Filed Feb. 10, 1928 3 Sheets-Sheet 1 A' 'Ml Sept. 3, 1929. 4 P. GuLLuNG 'I 1,727,285

CARD sToPPING DEVICE v Filed Febl0, 1928 5 Sheets-Sheet 2 SePt- 3, 1929. P. GULLUNG 1,727,285

CARD4 STQPPING DEVICE Filed Feb. 10, 1928 5 Snets-Sheet 5 Patented Sept. 3, 1929.

UNITED STATES 1,127,285 PATENT OFFICE.

`:PAUL GULLUNG, OF ST. ETIENNE DU ROUVRAY, FRANCE.

CARD-STOPPIN DEVICE.

Application filed February 10, 1928, Serial No. 253,470, and in y1"rance February 14, 1927.

In carding machines for cotton and other textile materials, in ordertoavoid non-uniform operation and to produce an unobjectionable quality of material, it is necessary 5 that the machine be stopped instantly upon the occurrence of any ydisturbance of the operation. This yis particularly important when: l

l. The fleece breaks between the yfcedrolls 1U and the drawing-oli rolls;

2. The silver breaks between. the drawingoft' rolls and the head of the can;

I 3. The corddriving the doller falls oli' or breaks;

4. A too heavy ortoo thin layer of the ma- A terial being treated is passed ,through the card, and

5. The carding can is too full and the head of the can is lifted ed by the pressureof the cotton. y 1

` It is already known, in order to avoid these diliculties, to provide between the feed rolls and the drawing-oil rolls a feeler which ordinarily lies against "the fleece and which, upon breaking or irregular feeding of the fleece, executes anoscillatory movement yand thereby elieets the closing of an electric circuitwherein an audible or other signal is included. This arrangement, however, ,has the disadvantage that when a disturbance of the f operation occurs, the resultA is not to stop the card automatically, but merely 'to call the attention of the .operator tending the machine Vto such disturbance, so that a certain amount j of time passes before the stopping of the machine by the operator. It has also been proposed to4 arrange a solenoid in the electric circuit which 4operates upon .the stop mechavnism of the card in such a manner that the 40 card is stopped upon closing of the circuit;

but this arrangement, as a rule, is likewise unsuitable, since it requires the use of a source ofcurrent, andthe conductivity of the exposed contact levers is injured by the cotton fibers settling thereon, so that in spite of the actuationof the 'feeler the closing of the circuit often does not take place.

According to ,thev presentinvention, the

disadvantages specified are overcome by utilizing the rkmovement of a feeler located -betweenithe drawing-oit rolls andthe head of the can to enablethe stopmechanism of 4, the card. to .be actuated in a purely mechanil cali'ashion, for example, by means of a Bowden wire, whereby a certain and instantaneous interruption of the operation is at-f tained.yl

InI the preferred form of ythe invention, a plunger subjected to the pressure of a spring or the like is L4connected by a Bowden wire to 60 the stop mechanism of the card, sothat upon gf:- movement of the feeler said plungery is freed and imposes a tension upon the Bowden wire.

The arrangement according to the inventionhas, as a result of its small size, the particular advantage that it may be applied in a very short time and without difficulty to cards of any construction whatever, andthat its actuation may control any, desired stop mechanism.` A f L In thefaccompanying drawings :'y i Figure 1 is a view, partly in section, showlng the releasing mechanism ordevice that cooperates with the feeler, the parts being in set position; f Fig 2 is an end view of Fig. 1,;

Figs. 3 and 3 are side and end views, respectively, of a connection between the Bowdenwirey and the stop lever of the machine; f

`Figs.-4 and 4a are similar views of a inodi- ,80 fied connection; I, l

Fig. showsy a device `for throwing out of gear the drive shaft of the feed rolls of'a card;

Fig. 6 is a modification of the device shown in Fig. l; f i

i Fig. 7 shows the invention in use.

In Figs.` 1, 2 and 7, v24is a feeler secured lto the upper end of a rod 22, over which the sliver 40, coming from the drawing-off rolls v41 of a card 42 of any desired construction, is led before its entry into the can 43. The

lower end of the rod 22 carrying thefeeler 24 is threaded into a forked lever 20 pivoted on a pinG mounted in lateral projections on a ca'sl95 ing 17.y In this casing isarranged a plunger 2, which is subjected to the pressure of a spring 1 and may be pushed ldownwardly againstA the action of the spring by means of a handle 3 that projects through a slot in the 100 casing. c j Ar' setting plate `16 is cast on the plunger casing 17 and is provided with two longitudinal slots 18, through which latter'pass two screws 19 by means of which itis adjustably 105 attached to the standard or column 44 at the side of the can 43 (Fig. 7). 4 f

ward movement by the latch 5, so that the device remains under tension. The tensioning of the spring 1 may be effected byv means of a threaded plug 9 having a central bore 10 through vwhich the cable 11 of a Bowden wire is passed; the upper end ofsaid cable extending through the plunger 2 and being secured to a ball 13 which lies in a seat in the top face'of the plunger. The sheath 12 of the Bowden wire is secured to the under side of the plug 9. i

A second threaded plug 14 is screwed into the upper end of the casing 17 and has formed in its under side an annular groove 15 which serves, in the extreme outward or upper position ofthe plunger 2, to receive the ball 4; the plug 14 acting to limit thek stroke of the plunger. d d y n The forkedlever 20 mounted on pin 6 is provided with an arcuate projection or finger 21 which is adapted to strike against the heel ofthe latch 5 upon a clockwise rocking movement of the feeler, so .that the latch is turned about said pin 6 against the action of spring 7 and thereby releases the plunger 2. The Bowden wire secured to the Vplunger is so combined with thestop motion of the card that, upon upward movement of the plunger, the stop leverl is actuated and the operation is interrupted, .and-,in accordance with the Varrangement ofthe stop mechanism either the drive for the feeding rolls or the drive for the dofer may be stopped. In the arrangen ments shown in Figs. 3, 3a, 4y and 4a, the actuati'on of the Bowden Vwire will lift or pull vdown the stop lever. Y n Y In Figs. 3 and 3a, 25 is the stop lever of the card, the operation of which releases a movable projection 2 8, which, by its movement,

effects the stopping of the doifer and thefeed in any desired known manner. Immediately adjacent the lever 25 is arranged the 'hook part of which rod underlies said lever 25, as shown. At the upper end of the slide rod 27 gis secured the cable 11 of the Bowden wire,rso that by pulling said cable upward the lever 25 will be lifted and the V.projection 28 released.

Figs. t anda showk a modification in which the stoppage of the doffer is effected by rotation of the shaft of stop lever 31. rIhe sheath M12 of the Bowden wire is here secured by nuts a hook- 'shaped sliderod 27 guided in a bracket 26,

an arrangement wherein the rotation of the drive shaft of the feed rolls is to be interrupted as soon as a tension is exerted upon the Bowden wire. The end of the cable 11 in this arrangement is secured to a movable pin 35 disposed within a housing 34, which pin is normally pressed downward by a Lspring 36 and, in the positionV shown, holds two bevel gears 38' and 39 comprised in the feed roll drive in engagement with each other. The housing 34 is screwed into the top of the bearing box of the feed roll shaft and is closed at its upperend by a cover 37. When an upward pull is exerted upon cable 11, the rod 35 is also drawn upward against the action'of the spring 36, so that the drive wheels 38 and 39 are disengaged by the action of a spring (not shown), or in any other suitableway, and the feed is thereby stopped.

VThe operation of the entire arrangement is as follows: The feeler 24,so long-as there are no disturbances in the operation of the machine, is maintained in position by the tension of the sliver 27 runningover it. As soon, however, as the sliver breaks or acquires a diameter less than that desired, the feeler 24 is caused to rock about its pivot 6, thereby bringing its arcuate finger 21 into contact with the latch 5 and swinging it about said pivot. The

means of the handle 3 or in some othermanl ner. Y

The' embodiment shown inFig. 6 ldiffers from that of Figs. 1 and 2 in that in placefof the ylatch 5, two latches 5', 5 are'provided; latch 5 being pivoted on pin 6, and latch 5 on pin 6 the first-mentioned latch having a projection T for holding the plunger 2 in tensioned position. Upon movement of the feeler secured to theA forked lever 20,v the latch 5 is struck and turned about pivot 6 by finger 21, whereby lever 5 is rocked aboutpivot 6, so that projectionT is'withdrawn from engagement-with the top of plunger 2,` which latter is thus released.

YI claim as my invention 1. In a carding machine, a movable controller, a feeler subjected to the tension of theV sliver, a spring-actuated plunger,afiexibledy tion, and a member connected to move with..

the feeler when the tension imposed thereon falls; said member, in its movement, adapted to strike against the detent and thereby release the plunger for movement by its spring.

2. In a carding machine equipped with a.v

stop motion which includes a stop lever, a trip mechanism for the stop lever comprising a feeler subjected to the tension of the sliver, a spring-actuated plunger, a flexible element directly connecting the plunger to the stop lever to actuate the latter consequent on active movement of the plunger, a detent normally holding said plunger in retracted position, and a member connected to move With the feeler when the tension imposed thereon falls said member, in its movement, adapted to strike against the detent and thereby release the plunger for movement by its spring.

3. In a carding machine, a movable controller, a feeler subjected to the tension of the sliver, a hollow casing having a slot in its side Wall, an external cross-pin attached to said Wall opposite said slot and to which the feeler is pivotally connected, a spring-actuated plunger movable in said casing, detent means pivotally mounted on said pin and projecting through the slot into the casing to engage the plunger and hold it normally in retracted position, a flexible element directly connecting the plunger to the controllerto actuate the latter consequent on active movement of the plunger, and a member connected to move with the feeler when the tension imposed lthereon falls said member, in its movement,

adapted to strike saiddetent means and thereby release the plunger for movement by its spring.

4. A machine according to claim l, in Which both the feeler and the striking member are attached to a pivotally-mounted support.

5. A machine according to claim 3, in Which a forked lever is pivoted to the crosspin carried by the plunger casingand to Which both the feeler and the striking member are directly attached. f

6. A machine according to claim 3, in Which a forked lever is pivoted to the cross-pin carried by the plunger casing and to Which both the feeler and thestriking member are fdirectly attached, said striking member having the form of' anarcuate finger secured yat one end to the forked lever and adapted to strike the detent means with its free end.

In testimony Whereofl ailix my signature.

PAUL GULLUNG. 

